Internal combustion engine



May 19, 1931. A. M. NlvEN Y INTERNAL GOMBUSTION ENGINE Filed Feb. 16, 1928 Patented May 19, 1931 UNITED s'rAri-:s

. ARCHIE MACPHAIL NIVEN, OF DETROIT, MICHIGAN, ASSIGNOR .TO CONTINENTAL,

PArer OFFICE- i MOTORS CORPORATION, OF DETROIT, MICHIGAN, A CORPORATION OF VIRGINIAV INTERNAL COMBUSTION ENGINE Application led February 16, 1928. Serial N'o. 254,642.-

This invention relates to internal combustion engines andhas among its objects the provision of improved means for heating the engine intake mixture. A further feature'of my invention resides in a novel construction for controlling the heat applied to the intake manifold, such heat 'being derived from the exhaust gases of the engine. f

One application of the teachings of my invention resides in an engine manifold arrangement wherein the intake and exhaust manifolds are located on opposite'sides ofthe engine, wherein difficulty is experienced in conveniently and efficiently applying the heat of the exhaust gases to the intake mixture."

Further objects and advantages of my invention reside in the novel combination and arrangement of parts more particularly hereinafter described and claimed.

In the accompanying drawings illustrating one embodiment of my invention,

Fig. 1 is a plan sectional view through a plurality of the engine cylinders and through the intake and exhaust manifolds,

Fig. 2 is a detail sectional .view through 2-2 ofk Fig. 1, and

Fig. 3 is a detail sectional view through 3 3 of Fig. 1.

Referring tothe accompanying drawings, reference character 10 represents the cylinder block having a plurality of aligned cylinders 11 here shown as the sleeve valve type wherein each cylinder is provided with intake and exhaust ports 12 and 13 respectively. One or more sleeve valves 14 within each cylinder 11'may be moved in the well known manner for sleeve valves in general causing sleeve intake and exhaust ports 15 and 16 respectively to function with the corresponding cylinder ports. For illustration I have shown my invention applied to a sleeve valve engine of the Burt-McCollum type in which a single sleeve valveV for each cylinder has a combined reciprocating and oscillating movement. However it should be understood that the particular movement or number of sleeve valves for each cylinder forms no part of my invention in itself. As the description of my invention. progresses it will be apparent that my improvements are equally adapted the groups of cylinder intake ports `12 which 1 open to the cylinder block intake .chambers 20, 21. Longitudinally extending walls 22 between adjacent cylinders divide the intake chambers 20, 21 from cylinder block exhaust chambers 23 which pass the exhaust gases from the cylinder ports'13r to the exhaust.

manifold 24 having an outlet 25.

The intake manifold 17 is provided with heater vj acket 26 which surrounds or embraces a suitable portion of the intake manifold, ex- Y haust gases from the exhaustmanifold 24 being conducted through a tube or cylinder block cored conduit or passage 27 below the intake and exhaust chambers and entering jacket 26 at 28. The exhaust gasesv after having heated the intake manifold portion embraced by thejacket 26 are preferably re.

turned to the exhaust manifold i through jacket outlet 29, return cylinder block con-v vduit 30, and outlet 31 which` opens into the exhaust manifold. l ,Y In order to positively induce and control the circulation of exhaust gases throughv the heater jacket 26 I have provided a valve 32 of any suitable construction cooperating with the conduit 27. VThus thevalve 27 may .bel

mounted on a rock shaftV 33 preferably ad! 'i justablemanually or automaticallyV by an actuating arm 34. In Figs. 1 and 2 thevalve is closed, preventing passage of exhaust gases to the heater jacket, the dotted valve positionv 32a in Fig. 2 and the full line position Vin Fig. 3 showing the valve in full open position. In the latter position substantially all of the exhaust gases from the cylinders tothe left of Vthe'valve 32, as viewed in Fig. v1, will be deflected or guided by the valve into conduit 27 whereby the exhaust gases are forced into the heater jacket 26 and thence through conduit 30 to they exhaust manifold. The exhaust gases from the remaining cylyinders will assist-fin the return flow'of gases from jacket 26 by reason of the auto-extraction eect at the opening 3l. By locating the valve 32 at varying points along the exhaust manifold 24 or by varying the size of the valve, more or less of the exhaust gases may be diverted from the exhaust manifold and passed to the heater jacket. Furthermore by adjusting the position of valve 32 angularly on its shaft 33 corresponding quantities of the exhaustgases will bebypassed through jacket -26. By adjusting thev valveV 32 the amount of heating applied to the intake mixture may be conveniently controlled.

What I claim as my invention is:

l. In an internal combustion engine, a cylinder block having a plurality of engine cylinders and a cored passage extending transversely therethrough, intake and exhaust manifolds for the engine respectively llocated. on opposite sides of the engine, a

heater jacket for the intake manifold, and means by-passing a portionV of the exhaust gases, from the exhaust manifold through the said passage in the Ycylinder block to theV heater jacket. Y ,l

'2. In an internal combustion engine, a cylinder block having a plurality of engine cylinders and a passage extending from one side to the other of the block, intake and exhaust manifolds for the engine respectively located on opposite sides of the engine, a heater acket for the intake manifeld, and valve controlled means: by-passing a. portion of the exhaust gases from the exhaust manifold through the 4 said 'passage in kthe cylinder block Vto the heater jacket.

3. In an internal combustion engine, a cylinder block having a plurality of engine cylinders, intake and exhaust manifolds for the engine respectively locatedon opposite sides of the engine, a heater jacketfor the intake Y manifold, a conduit transversely through the cylinder block between a pair of adjacent cylinders supplying exhaust gases from the yexhaust. manifold to. the heater jacket, and' a second conduit transversely through the cylinder block between another pair of adjacent cylinders returningthe exhaust gases from the heater acket to the exhaust manifold.

4. In an internal combustion engine, a cylinder block having a plurality of'engine cylinders, intake and exhaust manifolds for the engine respectively located on the opposite sic es of the engine, a heater jacket for the intake 'manifold, a conduit transversely through the cylinder block between a pair of adjacent cylinders supplying exhaust gases from the-exh austmanifold to the heater jacket, a second conduit transversely through the cylinder block between another pair of adja-cent cylinders returning Athe exhaust gases from the heater acket to the exhaust manifold, and valve controlled means regulating the quantity of exhaust gases by-passed from Y the exhaust manifold. to the heater jacket. ,Y

5. In an internal combustion engine, a cylinder block having a plurality of engine cylinders, intake and exhaust manifolds for the engine respectively located on opposite sides of the engine, a heater jacket for the intake manifold, a conduit transversely through the cylinder block'between a pair of.v adjacent cylinders supplying exhaust gases from the exhaust manifold to the heater jacket, a

second conduit transversely through the cylinder block between another pair of adjacent cylinders returning the exhaust gases from the heater jacket to the exhaust manifold, and a valve associated with the first said cylinder block conduit controlling the passage of exhaust gasesto the vheater jacket.

6. In an internal combustion engine, a cyl-1 indenblockliavinga plurality of engine 'cylinders,l intake yandexhaust manifolds for the engine respectively located on opposite sides of the' engine, a heater jacket for the intake manifold, a conduit vtransversely through the cylinder block between a pair of adjacent -cylind'erssupplying exhaust gases from the exhaust manifold to the heater jacket, a second conduit transversely. through the cylinder block between anotherpair of adjacent cylinders returning the exhaust gases from the heater jacket to the exhaust manifold, and a valve-swingingly.mounted within the exli-austnianifold and associated with one of said cylinder block conduits for controlling the passage of exhaust gases through the heater jacket.

T7. Inianinternalcombustion engine, a cyt inder block having a plurality of engine cylinders, intake and exhaust manifolds for the engine respectively located on opposite sides ofthe engine,fa heater jacket for the intake manifold, a conduit transversely through the. cylinder block between a pair of adjacentv cylinders supplyingexhaust gasesfrom the exhaust manifold to the heater jacket, and a'vsecond conduit transversely through` the cylinder vblock between another pair of adjacent cylinders returning the exhaust gases from the heater jacket to the exhaust mani-V fold', said exhaust manifold having an outlet to one side of the second conduit remote from the first conduit. j

8. In an internal combustion engine, a cylexhaust manifold having an outlet to one side ofthe second conduit remote from the first Yeo conduit, and a valve within the exhaust manifold associated with the first conduit controlling the passage of exhaust gases to the heater jacket.

9. In an internal combustion engine, a cylinder block having a plurality of'engine cylinders, intake and exhaust manifolds for the engine respectively located on opposite sides of the engine, a heater jacket for the intake manifold, a conduit between the exhaust manifold and heater acket, and a valve within the exhaust manifold associated with the conduit for regulating the quantity of exhaust by-passed from the exhaust manifold to the heater jacket. t

10.In an internal combustion engine of the sleeve valve type, a cylinder block having a plurality of cylinders ported for intake and exhaust, intake and exhaust cylinder block chambers respectively communicating with the cylinder intake and exhaust ports, said chambers extending generally transversely of the cylinder block and in opposite directions from the cylinders, intake and exhaust manifolds respectively communicating with the intake and exhaust chambers and positioned on opposite sides of the cylinder block, said intake manifold having a. heater jacket, a cylinder block conduit below the said chambers between a pair of adjacent cylinders, said conduit communicating with the exhaust manifold and the heater jacket, and

valve controlled means regulating the passage of exhaust gases through said conduit.

11. ln an internal combustion engine of the sleeve valve type, a cylinder block having a plurality of cylinders ported for intake and exhaust, intake and exhaust cylinder block chambers respectively communicating with the cylinder intake and exhaust ports, said chambers extending generally transversely of the cylinder block and in opposite directions from the cylinders, intake and exhaust manifolds respectively communicating with the intake and exhaust chambers and positioned on opposite sides of the cylinder block, said intake manifold having a heater jacket, a cylinder block conduit below the said chainbers between a pair of adjacent cylinders, said conduit communicating with the exhaust manifold and the heater jacket, and a second cylinder block conduit below said chambers between another pair of adjacent cylinders, said second conduit communicating with the exhaust manifold and cooperating with the first conduit to by-pass exhaust gases from the exhaust manifold to the heater jacket and thence back to the exhaust manifold.

l2. In an internal combustion engine of the sleeve valve type, a cylinder block having a plurality of cylinders ported for intake and exhaust, intake and exhaust cylinder block chambers respectively communicating with the cylinder intake and exhaust ports,

said chambers extending-generally transversely ofthe cylinderblock and in opposite directions from the cylinders, intake and exhaust manifolds respectively communicating said chambers between another pair ofadjacent cylinders, said vsecond conduit communicating with the exhaust manifold and cooperating with the rst conduit to by-pass exhaust gases from the exhaustl manifold to the heater acket and thence back to the exhaust manifold, said exhaust manifold having an outlet to one side of one of said conduits remote from the other of said conduits.

18. In an internal combustion engine of the sleeve valvel type, a cylinder block having a plurality of cylinders ported for intake and exhaust, intake and exhaust cylinder block chambers respectively communicating with the cylinder intake and exhaust ports, said chambers extending generally transverselyof the cylinder block and in opposite directions from the cylinders, intake and exhaust manifolds respectively communicating with the intake and exhaust chambers and positioned on opposite sides of the cylinder block, said intake manifold having a heater jacket, a cylinder block conduit below the said chambers between a pair of adjacent cylinders, said conduit communicating with the exhaust manifold and the heater jacket, a second cylinder block conduit below said chambers between another pair of adjacent cylinders, said second conduit communicating with the exhaust manifold and cooperating with the first conduit to by-pass exhaust gases from the exhaust manifold to the heater jacket and thence back to the exhaust manifold, and valve controlled means for regulating the passage of exhaust gases through the heater jacket. f

14. In an internal combustion engine of the sleeve valve type, a cylinder block having a. plurality of cylinders ported for intake and exhaust, intake'and exhaust cylinder block chambers respectively communicating with the cylinder intake and exhaust ports, said chambers extending generally transversely of the cylinder block and in opposite directions from the cylinders, intake and exhaust manifolds respectively communicating with the intake and exhaust chambers and positioned on opposite sides of the cylinder block, said intakel manifold having a heater jacket, ka cylinder block conduit below the said chambers between a pair 'of adjacent cylinders, said conduit communicating with the exhaust manifold and the heater jacket, a second cyl-` ice nder block conduit below said chambers be-A tween another pair of adjacent cylinders, said second conduit communicating Withhthe exhaust manifold and (zo-operating With the first conduit to by-pass exhaust gasesy from the exhaust manifold to the heater jacket and thence back to the exhaust manifold, andfa Valve within the exhaust manifold asso= ciated With-one of said conduits for regulating the passage 4o exhaust gases through the heater jacket. i

In Witness whereof, I hereunto subscribe my name this 8th day of February, A. D. 1928-. Y

ARCHIE MACPHAIL NIVEN.

Y 50.A l 

